Lincoln Electric INVERTEC SVM129-B Service Manual page 59

F-21
T4 AUXILIARY TRANSFORMER TEST (continued)
J1 CURRENT
SENSING PLUG
LOWER
TRAY
AREA
5. Disconnect the current sensing Plug J1 from
the control PC board. Carefully remove Plug
J1 and associated leads from control board
compartment. See Figure F.4.
PLUG J22
6. Locate and disconnect plug J22 from the
wiring harness. See Figure F.5.
TROUBLESHOOTING & REPAIR
FIGURE F.4 – PLUG J1 LOCATION
FIGURE F.5 – PLUG J22 LOCATION
INVERTEC STT
OUTPUT CHOKE/
DARLINGTON MODULE
SPLICED CONNECTION
F-21